O2 in the UK butcher images while using GPRS/3G/EDGE – seriously effecting the iPhone. Images are recompressed to horrendous levels – look at the App Store here:
As you can see, the Facebook and Super Monkey Ball banners have been recompressed. This effects webpages aswell – meaning downloading new wallpapers or browsing Flickr is a waste of time. However, if you change the username for the O2 access point under Settings > General > Network > Cellular Data Network to “bypass” from the default “vertigo” like so:
The compression is now turned off! Now the “whole internet in your pocket” is actually the whole internet in your pocket.